Johan ludvig waldemar olsen



UNITED rarns lPA'rnNr rurce,

JOHAN LUDVIG TALDEMAR OLSEN, OF COPENI'IAGEN, DENMARK.

BAKE-OVEN.

SPECIFICATION forming part of Letters Patent No. 324,721, dated August 18, 1885.

Application filed December 13,1884. (o model.) Patc'nted in Austria-Hungary December 20, 1884, No. 38,783 and No. 59,172,

and iu France February ,20, 1885-, No. 161,895.

To aZZ whom it may concern:

Be it known that I, J OHAN LUDVIG WALDE MAR OLsEN, a subject of the King of Denmark, residing at Oopeuhagen, in the Kingdom of Denmark, have invented certain new and useful Improvements in Bake-Ovens; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to bake-ovens; andit has for its obj ect to provide a bake-oven which shall possess superior advantages in point of simplicity, durability, and general efficiency, and in which the heat supplied to the oven shall be of the most Vsteady, even, and permanent character which it is possible to obtain,

and in which the cooling of the oven shall be gradual and slow, in which the principal application of heat shall be at the top of the oven, Where it is most required, while the products of combustion shall be exhausted from ducts under the bottom, so that the heat supplied shall be utilized to the greatest possible eX- tent.

Vit-h these ends in view the invention consists in the improvcd construction and ar-` rangement of parts, which will be hereinafter fully described, and particularly point-ed out in the claim.

In the drawings hereto annexed, Figure 1 is a Vertical transverse sectional view of my improved bake-oven. Fig. 2 is a Vertical longitudinal sectional view taken on the line x x in Fig. 1. Fig. 3 is a horizontal transverse sectional view taken on the line a a in Figs. 1 and 2. Fig. 4 is a horizontal transverse sectional view taken on the line b b in Figs. 1 and 2. Fig. 5 is a horizontal transverse sectional view taken on the line c c in Figs. 1 and 2; and Fig. 6 is a horizontal transverse sectional view taken on the line d d in Figs. 1 and 2.

The same letters refer to the same parts in all the figures.

A designatcs the front wall of the bake-oven which constitutcs my invention. Thesaid front wall is provided with the entrance or opening B, through which access is had to the oven proper, O. The latter is constructed with an arched top wall, D, above which is formed a chan1ber,E,forming a smoke or heating chamber, into which the main fiue F, leading from the furnace G, opens, as shown. The fiue F opens into the top of the chamber E, and the latter is provided on each side of the said flue, opening With a Vertical wall or partition eX- tending from the rcar toward the front end of the said chamber and terminating some distance from the front wall of the latter, thus subdividing the chamberE into compartnlents e e and f,into the central one of which the flue F opens, and the side ones of which, e e, are provided at their rear ends with downwardlyextending fiues H H, extending through the back Wall of the furnace to a chamber,I,which is located underneath the bake-oven proper, and divided by partitions extending from the back wall toward the front end of said compartment into sub-chambers or compartments h h audi, the fornier of which being located at the outer sides communicate with the flues H H. The central chamber,t',which receives the products of combustion from the cha'mbers h h,is provided at its rear end with a downwardly-extending passage, J, communicating with a central longitudinal bottom fiue, K, the front end of which is connected by an angular passage, L, with the smoke-Stack or chimney M.

The operation and advantages of this invention will be readily understood from the foregoing description, taken in connection with the drawings hereto annexed. The products of combustion from the furnace pass through the flue F into the chamber E, or more correctly into the chamber or conipartnient f of the latter thence through the chambers e e and flues or passages H H into the compartments h h of the chamber I; thence through the central compartment, 1;, of the latter, and `through the passage J, flue K, and passage L to the chimney or smoke-Stack. By this construction it will be seen that the greatest heat will be thrown on top of the bake-oven proper, where it is most required, while the products of comhustion are required to pass through IOO , convolute passages around and underncath the oven, which is thus thoroughly heated. By this construction another important object is also attained-namely, that the oven is under no circumstances permitted to cool rapidly, but retains its heat for the longest period possible, thus eontributing to the thorough and successful baking of its contents.

I am aware that bake-ovens have been made having ducts for the products of the combustion to pass around the oven, and I do not wish to claim such construction, broadly; but I am not aware that such ovens have been made in which the fiue from the furnace has entered into the chamber above the oven, whereupon the products of combustion have been carried around the oven and out into the chimney at apointunderneath the oven,whereby the said products are much retarded and forced to give off the greatest quantity of heat; and

I therefore elaim- A baker7s oven comprising the bakingchamber O, the chamber below the bakingchamber having partial partitions dividing 2 5 the chamber into compartments hh a chamber, E, above the baking-chamber having partial partit-ions dividing this chamber into compartments e c f, a furnace, G, at one side of this chamber, flue F, connecting the furnace 30 with compartmentf of chamber E, fiues H, eonnecting compartments e e of chamber E with compartments h h of chamber I, and a fiue connecting compartment i of chamber I with the chimney.

In testimony whereof I affix my signature in prcsence of two witnesses.

JOIIAN LUDVIG WALDEMAR OLSEN.

Witnesses:

VIGGo O. EBERTH, HANS JAcoB LARsEN. 

